Rule 34 Dev - 5boys crouching diphallia diphallism docu_(air) docu_(doppel) docu_(gas) docu_(giant) docu_(tentacle) doppel erection green_eyes group hair hi_res horn humanoid looking_at_viewer male male_only monster_girl_(genre) multi_penis original penis penis_tail penis_with_face tail tail_penis triphallia vein veiny_penis|2783152520